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Paper Abstract and Keywords
Presentation 2022-06-30 13:50
Object discrimination ability of bats by operant conditioning
Mayuko Mogi, Yu Teshima, Hare Nishida, Takao Tsuchiya, Shizuko Hiryu (Doshisha Univ.) US2022-14
Abstract (in Japanese) (See Japanese page) 
(in English) Bats acquire information about a target by emitting ultrasound pulses from their mouths or noses and listening to the echoes from the target. Due to the physical nature of sound wave propagation, it is expected that echolocation can acquire information on the surface shape of an object, as well as information on the backside of the object that is difficult to perceive visually (blind spot information). In this study, we investigated whether bats can use these information by echolocation. Four Japanese brown bats (Pipistrellus abramus) were used to discriminate the presence or absence and shape of a target (dome-shaped, 98 × 146 × 54 mm, made of resin) using an operant conditioning method. The results showed that the bats were able to discriminate differences in the texture and the shape of objects at the blind spot. Next, to investigate what acoustic features in the echoes were cues for the bats, we used acoustic simulations to obtain echoes from the targets which were used in the discrimination experiments, and found that bats were more likely to use temporal-frequency pattern as cues than the strength of the echoes from the objects.
Keyword (in Japanese) (See Japanese page) 
(in English) echolocation / ultrasound / FDTD simulation / blind spots / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 91, US2022-14, pp. 25-30, June 2022.
Paper # US2022-14 
Date of Issue 2022-06-23 (US) 
ISSN Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2022-14

Conference Information
Committee US  
Conference Date 2022-06-30 - 2022-06-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai University (Senriyama Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ultrasound in medicine, Acoustic imaging, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2022-06-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Object discrimination ability of bats by operant conditioning 
Sub Title (in English)  
Keyword(1) echolocation  
Keyword(2) ultrasound  
Keyword(3) FDTD simulation  
Keyword(4) blind spots  
1st Author's Name Mayuko Mogi  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Yu Teshima  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Hare Nishida  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
4th Author's Name Takao Tsuchiya  
4th Author's Affiliation Doshisha University (Doshisha Univ.)
5th Author's Name Shizuko Hiryu  
5th Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2022-06-30 13:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2022-14 
Volume (vol) vol.122 
Number (no) no.91 
Page pp.25-30 
Date of Issue 2022-06-23 (US) 

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